Alert archive / Missouri / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 53, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Aug 3, 1987, 8:16 PM CDT for Jefferson County, Missouri. It was in force for 44 min.
The area
The counties it named.
The facts
- Issued
- Aug 3, 1987, 8:16 PM CDT (01:16 UTC)
- Expired
- Aug 3, 1987, 9:00 PM CDT
- In force
- 44 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Jefferson County, MO
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Salem-Leckrone, IL (KSLO), launched 00:00Z, 1.3 hours before the alert went out and 149 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1065 J/kg
- Mixed-layer CIN
- -145 J/kg
- Mixed-layer LCL
- 1652 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSTL 040115 SVRSTL MOC099-040200- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 816 PM CDT MON AUG 3 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 900 PM CDT FOR THE FOLLOWING COUNTY OF EAST CENTRAL MISSOURI... JEFFERSON AT 805 PM A SEVERE THUNDERSTORM PRODUCED DAMAGING WINDS IN ST CLAIR MISSOURI IN FRANKLIN COUNTY OR ABOUT 45 MILES SOUTHWEST OF ST LOUIS. THE STORM WAS MOVING TO THE EAST SOUTHEAST AT 30 MPH. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH ...LARGE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION GO TO AN INTERIOR ROOM ON THE LOWEST FLOOqR OF YOUR HOME OR BUSINESS. PB
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Aug 3, 6:05 PM CDT, 2 hours 11 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 605 PM CDT MON AUG 3 1987 A PORTION OF THE SEVERE THUNDERSTORM WATCH NUMBER 465 HAS BEEN CANCELLED OVER NORTH CENTRAL MISSOURI. THE SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT SOUTH OF A LINE FROM 20 MILES NORTHWEST OF BURLINGTON IOWA TO 25 MILES WEST OF KIRKSVILLE TO 30 MILES EAST OF ST JOSEPH MISSOURI UNTIL 9 PM CDT. BROWNING
Special weather statement, Aug 3, 6:56 PM CDT, 1 hour 20 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE COLUMBIA MO 650 PM CDT MON AUG 3 1987 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTH COUNTIES OF CENTRAL MISSOURI UNTIL 9 OCLOCK TONIGHT... ...THUNDERSTORMS WITH VERY HEAVY SHOWERS...BUT NO SEVERE WEATHER IN CENTRAL MISSOURI....... AT 645 PM CDT COLUMBIAS RADAR SHOWED SCATTERED THUNDERSTORMS..SOME WITH VERY HEAVY SHOWERS..IN WEST AND NORTH CENTRAL MISSOURI. THESE WERE NORTHWEST OF A LINE EXTENDING FROM 75 MILES WEST OF COLUMBIA TO MARSHALL ..ABOUT 50 MILES NORTHWEST OF COLUMBIA ON UP TO ABOUT 15 MILES NORTHEAST OF KIRKSVILLE. THE HEAVIEST SHOWERS WERE SCATTERED BETWEEN KIRKSVILLE AND BYNUMVILLE AND BETWEEN MARSHALL AND PIT8TSVILLE..ABOUT 30 MILES SOUTHEAST OF KIRKSVILLE. THE THUNDERSTORMS WERE MOVING TO THE SOUTHEAST AROUND 20 MILES AN HOUR.
Special weather statement, Aug 3, 7:01 PM CDT, 1 hour 15 minutes before
SPECIAL WEATHER STATEMENT...CORRECTION NATIONAL WEATHER SERVICE COLUMBIA MO 650 PM CDT MON AUG 3 1987 ...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTH COUNTIES OF CENTRAL MISSOURI UNTIL 9 OCLOCK TONIGHT... ...THUNDERSTORMS WITH VERY HEAVY SHOWERS...BUT NO SEVERE WEATHER IN CENTRAL MISSOURI....... AT 645 PM CDT COLUMBIAS RADAR SHOWED SCATTERED THUNDERSTORMS..SOME WITH VERY HEAVY SHOWERS..IN WEST AND NORTH CENTRAL MISSOURI. THESE WERE NORTHWEST OF A LINE EXTENDING FROM 75 MILES WEST OF COLUMBIA TO MARSHALL ..ABOUT 50 MILES NORTHWEST OF COLUMBIA ON UP TO ABOUT 15 MILES NORTHEAST OF KIRKSVILLE. THE HEAVIEST SHOWERS WERE SCATTERED BETWEEN KIRKSVILLE AND BYNUMVILLE AND BETWEEN> MARSHALL AND PITTSVILLE..ABOUT 30 MILES SOUTHEAST OF KANSAS CITY. THE THUNDERSTORMS WERE MOVING TO THE SOUTHEAST AROUND 20 MILES AN HOUR.
Special weather statement, Aug 3, 7:58 PM CDT, 18 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 755 PM CDT MON AUG 3 1987 SCATTERED THUNDERSTORMS WERE OCCURRING OVER PORTIONS OF NORTHERN MISSOURI AND WEST CENTRAL ILLINOIS THIS EVENING. AT 745 PM... WIND GUSTS OF 40 TO 45 MPH WERE REPORTED IN SOUTHERN GREEN AND NORTHERN JERSEY COUNTIES IN WEST CENTRAL ILLINOIS. MINOR DAMAGE TO A SHED IN JERSEY COUNTY WAS REPORTED. THESE GUSTY WINDS CAN BE EXPECTED WITH THE THUNDERSTORMS OVER NORTHEAST MISSOURI AS WELL. ALTHOUGH THE WINDS ARE NOT CONSIDERED SEVERE...THE WIND IS STRONG ENOUGH TO BLOW UNSECURED OBJECTS AROUND. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 9PM OVER PORTIONS OF NORTHEAST MISSOURI. BROWNINGi
Nearby
Severe Thunderstorm Warnings in Missouri, 1987Every severe thunderstorm warning in 1987
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.